/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeTexture2DFactoryNode.h
The textures must be of the same format and use the same pixel format The first block in the map is used to determine the accepted texture format and pixel format
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | Texture | UDIMs") void SetSourceBlockByCoordinates ( int32 X, int32 Y, const [FString](API\Runtime\Core\Containers\FString) & InSourceFile )